Authority and Authoritative Texts in the Platonist Tradition

Introduction Michael Erler, Jan E. Heßler and Federico M. Petrucci; 1. Xenocrates' invention of Platonism David Sedley; 2. An iconography of Xenocrates' Platonism David Sedley; 3. Arcesilaus' appeal to Heraclitus as a philosophical authority for his sceptical stance Anna Maria Ioppolo; 4. Authority beyond doctrines in the 1st century BC: Antiochus' model for Plato's authority Federico M. Petrucci; 5. Authority and doctrine in the pseudo-pythagorean writings Bruno Centrone; 6. Constructing authority: a re-examination of some controversial issues in the theology of Numenius Alexandra Michalewski; 7. Plutarch's E at Delphi: the hypothesis of platonic authority George Boys-Stones; 8. Aristotle's 'physics' as an authoritative work in early Neoplatonism (Plotinus and Porphyry) Riccardo Chiaradonna; 9. Conflicting authorities? Hermias and Simplicius on the self-moving soul Saskia Aerts; 10. Kathēgemōn the importance of the personal teacher in Proclus and later Neoplatonism Christian Tornau; 11. 'In Plato we can see the bad characters being changed by the good and instructed and purified' attitudes to platonic dialogue in later Neoplatonism Anne Sheppard.